ECC GROUP

3TH 3TB 3TD AC CONTACTOR

APPLICATION

The contactor is suitable for using in the circuit up to the rated voltage 660V AC 50/60HZ, rated current 630A, for making and breaking, and for frequent starting and controlling the motor. After combined with the mechanical interlocking device, it becomes 3TD series convertible contactor for controlling, starting, breaking and reversing of the motor. The products comply with IEC947-2 & VDE0660.

SPECIFICATION

Type

Rated thermal current (A)

Rated operating current at 380V(A)

Rated operating current at 660V(A)

The power of controlled motor(KW)

Type of auxliliary contact

380V

660V

3TB40

22

9

7.2

4

5.5

1NO
1NC
1NO+1NC
2NO+2NC

3TB41

22

12

9.5

5.5

7.5

3TB42

35

16

13.5

7.5

11

3TB43

35

22

13.5

11

11

3TB44

35

32

18

15

15

2NC+2NO

Type

Rated thermal current(A)

Rated operation current(A)

Controllable power of motor(KW)

AC-3

AC-4

380V

660V

380V

660V

380V

660V

3TD40

20

9

7

4

5.5

1.4

2.4

3TD41

20

12

8.5

5.5

7.5

1.9

3.3

3TD42

30

16

12.5

7.5

11

3.5

6

3TD43

30

22

16.5

10

15

4

6.6

3TD44

55

32

24

15

22

7.5

13

3TD45

55

38

24

18.5

22

9

15.5

3TD46

80

45

40

22

37

12

20.8

3TD47

80

63

60

30

55

14

24.3

3TD48

100

75

60

37

55

17

29.5

3TD49

100

85

80

45

75

21

36

3TD50

160

110

95

55

90

27

46.9

3TD51

160

140

120

75

110

35

60

3TD52

200

170

160

90

150

38

66

3TD53

210

205

165

110

160

50

86

3TD54

300

250

230

132

220

58

100

3TD55

300

300

260

160

250

66

114

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